seo and include files

I use tons of include files in my asp pages. But i don't want to have them indexed by seo's
if i put this tag (<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">) in the include files how it will be placed in the asp page i do want indexed.
How do i do this ?

Spiders index the rendered html page only - there is no way for the spiders to work out how that page was constructed or where the component parts came from - all they see is the html as it is sent to the browser - and that is what they index.

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